• To round a number, look at the digit to the right of the
Chapter
place value to which you a...
Mathematics, 27.11.2020 09:00 mt137896
• To round a number, look at the digit to the right of the
Chapter
place value to which you are rounding.
1
• If the digit is 5 or more, round up.
• If the digit is less than 5, round down.
Round up
Add 1 to the
146 rounded to the nearest ten is 150.
number in the place
value to which you
This is the Since 6 is greater than 5, round the
are rounding.
tens place. 4 up to 5.
Make the digits to
the right of it o.
45.23 rounded to the nearest tenth is 45.20.
Round down
Do not change the
number in the place
This is the Since 3 is less than 5, the 2 stays the
value to which you
tenths place. same.
are rounding.
Make the digits to
2. Underline the tens digit. Round to the nearest ten.
the right of it o.
a) 36
b) 162
c) 105
3. Underline the hundreds digit. Round to the nearest hundred.
a) 732
b) 675
C) 1825
4. Underline the tenths digit. Round to the nearest tenth.
a) 0.37
b) 74.55
c) 15.23
5. Underline the hundredths digit. Round to the nearest hundredth.
a) 1.212
b) 3.427
c) 0.351
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